Explain the chemical properties of insulating materials, Electrical Engineering

Assignment Help:

Explain the chemical properties of insulating materials.

Chemical properties-

Chemical resistance: Presence of gases, acids, water, alkalies and salts influences different insulators in a different way. Chemically a material is a better insulator if this resists chemical action.

Hygroscopicity: Several insulators come in contact with the atmosphere throughout manufacture or operation or both. Moisture influences the electrical properties of the insulator.

Effect of contact with other materials: Insulation remains in contact with various types of materials as air, moisture, gases, structural materials and conducting materials. It can adversely influence the insulating properties.

Ageing: Ageing is the long time effect of heat, chemical action, and voltage application. These factors decide the natural life of an insulator.


Related Discussions:- Explain the chemical properties of insulating materials

Revision of basics, Revision  of Basics Although  it is  assumed in th...

Revision  of Basics Although  it is  assumed in this book  that the  reader has  enough  knowledge of  various number systems ( binary, octal and hexadecimal and their relation

Determine the value of the capacitance in single phase, Q. Three loads in p...

Q. Three loads in parallel are supplied by a single phase 400-V, 60-Hz supply: Load A: 10 kVA at 0.8 leading power factor Load B: 15 kW at 0.6 lagging power factor Load C:

Electromagnetic torque, The torque produced by each conductor in the field ...

The torque produced by each conductor in the field will be:  where A is the area of the armature winding in the magnetic field, Ia is the current in armature winding, and B

Materials that can store electrical energy, Q . Materials that can store ...

Q . Materials that can store electrical energy are called (A) magnetic materials. (B) semi conductors. (C) dielectric materials. (D) super conductors. Ans: C

Electronics, why bypass capacitor is used

why bypass capacitor is used

Fermi level, Fermi Level Electrons in solids obey Fermi-Dirac (F...

Fermi Level Electrons in solids obey Fermi-Dirac (FD) statistics. This statistics accounts for the indistinguishability of the electrons, their wave nature, and the

Determine voltage on the self-biased n-channel, Measurements made on the se...

Measurements made on the self-biased n-channel JFET shown in Figure are V GS =-1 V, I D = 4 mA; V GS =-0.5V, I D = 6.25 mA; and V DD = 15 V. (a) Determine V P and I DSS .

How can we prove that radio waves are sine waves, What makes them sine? ...

What makes them sine? Ans) Fourier tells that only a sine wave has no harmonic content. The math works out that if you have any wave shape other than a sign wave, you can brea

Show a block diagram of a 4-bit shift-right register, Q. A shift register c...

Q. A shift register can be used as a binary (a) divide by-2, and (b) multiply-by-2 counter. Explain. Show a block diagram of a 4-bit shift-right register using JKFFs.

Draw a block diagramfor a 2-to-4 decoder, Q. Draw a block diagramfor a 2-to...

Q. Draw a block diagramfor a 2-to-4 decoder. Obtain the truth table, and develop a logic diagram.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd